Pipe



NOV. 28, 1939; K SQHUTZ I 2,181,496

PIPE Fild April 7, 1938 FIG I ."ffggfl? INVEIJITOR.

KOLIEAD fcuuwz BY 63m 0 ATTORNEY.

Patented Nov. 28, 1939 UNITED sra'rss e ENT Germs v I 2,181,490 p I Konrad ,Sch'utz, Brook lyng N. Y. 7

Application "April 7, 1938, Serial No. 120;0,579

I H i making ofu-a' sleeve-cover for said reduced inner This invention relates to smoking pipesi- The object of the invention is to provide'a simple, inexpensive, easily appliedand yet highly efiicient means, and a means not requiring the use of renewable or any smoke filters or the like,

for controlling the saliva, tobacco oil and =nicotine accumulations in the pipe, by trapping them in such manner that a cool, dry, "sweetsmoke is always insured, and yet the accumulations are always trapped at locations facilitating their quick and easy removal whenever desired. i

In carrying out the invention, the hollow shank of the bowl is shaped interiorly to provide a chamber extending almost to the pipe bowl, and said shank is fitted with a cup liner so shaped and positioned as to fill the bowl-adjacent part and a'considerable length of the chamber in the shank, andthereby close communication of that part of the chamber with theinterior of the'bowl,

except by way of a channel exterior to andiat'the top of and "formed as a groove in and extended longitudinally of the cup liner.

In a pipe thus madeand equipped, and including a stem having as usual a central longitudinal smoke-bore the inner end of which terminates at the inner end of areduced end portion of the stem, such stem can be readily separated from the shank, and yet always inserted therein, to

the full extent of said reduced end portionwith' the insurance that the inner 'end ofsaid smokeboie will be predeterminedly spaced from the outer end of the channel along the top of the cup liner. Also, because the stem smoke-bore must then be at a lower level than said-channel, there isestablished a non-straight smoke passage between the bowl andthe stem, by way of said channel and the outer end of the cup liner, which end of said cup liner is the open end thereof. I

This non-straight smoke passage is thus of a character to permit the saliva, tobacco oil and nicotine to be dropped to, and thus accumulate the bottom of the shank chamber and-the bottom of the cup liner; due to the 'fact, on the one hand, that the stem smoke-bore is below the channel atop the cup liner, and due to the fact,

I on theother hand, that the cup liner bottom is below the stem smokebore.' Other features of the invention, all of which incorporated in a now preferred'embodiment of the invention as illustrated in the accompanying drawing, are shapings of-the reduced inner end portion of the stem and of the inner or open end of the cup liner in special ways; the making of the cup. liner of sheet metal; the

end of the stem alsoof sheet metal; and the addition to the open end of the cup liner of a .meansyadjustable to close the upper portion of" saidopening to exercise a special saliva control a when said gate is in. closed position'itis downwardly inclined toward the bowl of the pipe.

' The foregoing features, and others, and their advantages, will be hereinafter made fully clear.

In the accompanying drawing, wherein, in exemplification of the invention, the hereinabovementioned how preferred embodiment thereof is ,sillustrated:

.Fig. 1 shows-said embodiment, much enlarged,

in central longitudinal section, with the stem "properlyicoupledto the bowl shank andrwith all parts arranged-as insmoking the pipe.

a Fig. 2 is a transverse section, taken on the line 2 -'2 of Fig; l, and showing the parts on even "a more enlarged scale than in Fig. 1. I

- Fig, 3 is a. detail View. showing the gate, de-

tached', and viewed in face elevation as in Fig. 2. Fig. 4 is a fragmentary section and one similar toiFig. 1, except that here the stem'has been removecLand-the' gate is now in open position to facilitate cleaning out of the cup liner and illustrated as just. having been brought to that position' by' the aid of a wire or other suitable gatelifting tool.

Similar reference characters refer to similar parts throughout the several views of the drawing. 1 Y "Referring'now in detail to the exemplifying embodiment illustrated in said drawing, the pipe is shownascomprising a bowl if), having an offset tubular shank ll and a separable stem E2.

The bowl in and shank H as will be understood can have anyv desired shapings, and the angular relation of the shank to the bowl can be varied as wished; asthese matters of taste or individual preferenceihave nothing to do with the present invention.

Theshank II, as here shown, is shaped interiorly to provide a cylindrical chamber I 4 extending centrally through thesame from the outer end thereof to a point veryv close to the tobacco holding chamber l5 in the bowl.

Snugly fitted within the shank chamber 14 is a sheet metal, conveniently a drawn brass, cup liner [6. The'length of this liner is such as to extend for a considerable distance over a length 5 of the chamber M at the end thereof adjacent to the bowl chamber l5. The inner end of the liner is the closed end of the cup constituting the liner, and is made slightly curved as at I1; with such curvature interrupted by a groove I8 at 10 the inner end portion I9 of the latter. Although this end portion E9 of the groove may dip down somewhat in agreement with the curved shape of the inner end of the cup liner, the entirety of;

the groove i8 is on the top of the cup liner, such groove extending longitudinally of the cup liner'I- Due to the snug fit of the cup liner 16 in the--- shank chamber, the top of the groove is closed in along its length by the roof of said chamber l4,

to provide a special channel 20 through which 20 the smoke from the burning tobacco in the bowl It) must first go after leaving the bowl by way of a small straight draft bore 2|.

The'stem I2 is conveniently separably coupled to the shank l I in the usual way, that is, by being part of a structure, of a. diameter to fit into the chamber [4, incorporating a reduced inner end portion 22 including a cylindrical subdivision adjoining the main stem portion. Also as conventional, the stem I2 is provided with a smoke-bore 23 which extends centrally through said cylindrical subdivision of the end portion 22. However, according to the present inventionas preferably' carried out, the part of the stem structure which incorporates the reduced inner end portion 22 is prolonged further away from the main part of the stem to provide a projection 24 circumferentially tapered toward the adjacent end of the cup liner it, such taper being shown as a substantially conical one. This projection 24, and

also a substantially cylindrical neck 25 at the free end thereof as well as a covering for the cylindrical subdivision of the stem portion 22,

are in the embodiment illustrated provided by a single cover-sleeve 26 of metal, conveniently drawn or spun from a piece of thin brass tubing. If desired, the reduced inner end portion 22 of the stem can be shaped, as is now preferred although not here so shown, to carry an extension beyond its cylindrical subdivision illustrated and so contoured as to fit within the interior of the cover-sleeve 25 where the conical projection 24 is established; in which case, this extension would carry a continuation of the smoke-bore 23 leading directly to the neck 25.

The smoke-inlet end of the neck 25, it will be noted, extends in well under the top wall of the cup liner l6, when the stem is properly coupled to the bowl shank.

With the pipe constructed as so far described, that is, whether or not a gate 21 hereinafter referred to in detail is present, there is provided a non-straight smoke passage between the bowl chamber l5 and the smoke-bore 22 in the stem,

that is, a smoke passage which first runs alongan extended straight length of the groove I8 at a high level, and then descends down along the projection 24 in the direction of taper of the latter in two streams resulting from contact of the outer bottom end of the groove 18 with said projection, and then travels again toward the pipebowl in under the roof of the cup liner l6, before the neck 25 and hence the smoke-bore 23 in the stem can be reached.

Tobacco oil and nicotine carried with the smoke from the bowl chamber l5 may deposit to some recommended, because additional advantages accrue when it is present, The gate 21, it will be noted, is so designed that, when arranged as in Figs. l and 2,, it closes the open end of the cup 'liner all over except for a small elliptical orifice 28 between the bottom of the gate and the liner,

and is spaced from and downwardly inclined away from the neck 25 which is at the inner end of the stem 12. With the gate 21 thus arranged, the smoke being drawn from the bowl sweeps down over the plate established by the gate and tends to keep the same clean and to urge any liquid on the gate toward the lower end thereof above the orifice 28. Occasionally, also, as when saliva collects in the smoke-bore 23 of the stem I2, the smoker will naturally blow into the stem toclear the same. This will eject this saliva with sufiicient Velocity to cause drops thereof to strike the inclined gate 21, descend along the latter, sweep in'under the same, and drop into the bottom of the cup liner 16. Due to the relative viscosity of the saliva, there will be inconsiderable or no outflow thereof from the cup liner through the orifice 28. Should some saliva get into the bottom of the shank chamber l4, that will flow into the cup liner I6 whenever the pipe is accidentally placed with its bowl lowermost. Should saliva work its'way into the channel 20, the draft therein caused by pulling on the pipe will cause this saliva to be discharged from the groove l8 at its outer end and so to be dropped down toward the bottom of the cup liner.

The open end of the cup liner It, as shown, is

in an inclined plane, so that when the gate 21 is closed the open end of the cup acts as a stop for the back face of the gate at the arcuate marginal portions 29 of the gate.

a This gate 21, here shown as a flat thin metal sheet of the outline shown in Fig. 3, is closed as in Fig. 1 during smoking of the pipe. Smoke drawn from the channel 2!) is impelled by the inclination of the projection 24to sweep'downward along the gate, to deposit thereon tobacco oil and nicotine which would otherwise enter the smokebore 23 of the stem.

' The gate v2! is connected to the cup liner l6 near its top by a pair of oppositely offset and horizontaIly aligned ears 35 received in round apertures 3! in the liner in oppositely located inwardly extended depressions 3! in the latter. The gate is thus pivotally hung in the cup liner l6, and so is able to be swung to closed position as shown in Figs. 1 and 2 as already described,-or lifted to open position as in Fig. 4.

The. ears 30 of the gate fit in the apertures 3| of the cup liner with suificient tightness to set up a frictional means to hold the gate in whicheversetting to which it is moved, that is, either in closed or in open position.

When, as in Fig. 4, the stem i2 is removed, the gate 21 can be swung up to open position as there illustrated, by first inserting an end of a wire or like tool 33 into the orifice 28 so as to lie under cover-sleeve 26 is accessible for cleaning; as also I are the groove i8 and the gate 2'I-even as to the rear face of the latter when swung up to open position as in Fig. 4.

As will be understood, variations and modifications within the invention, as above pointed out or otherwise, are possible; and parts of the improvements may be used without others.

I claim:

1. A smoking pipe comprising a bowl having a tubular shank, a separable stem having at its inner end a reduced portion received in the shank; and means for establishing a non-straight smoke passage between the bowl and the stem for trapping saliva, tobacco oil and nicotine in the shank, said means including a cup liner for the shank at the inner endof the shank, said cup liner being open at its stem-facing endand having a longitudinal channel for smoke along its top and out of communication with the interior of the cup all along the length of the latter, the bowl having a smoke passage connecting with said channel near its end adjacent to the closed end of the cup, and the stem having a smoke passage extending from the outer end of the stem to and through said reduced portion of the stem, said passage through the stem terminating in the shank above the bottom of the cup liner but below said channel, said reduced portion of the stem being tapered toward the pipe bowl, a gate pivotally hung near its top in the cup liner and swingable to close the upper portion only of the open end of said "cup liner.

2. A smoking pipe comprising a bowl having a tubular shank, a separable stem having at its inner end a reduced portion received in the shank, and. means for establishing a non-straight smoke passage between the bowl and the stem for trap-v ping saliva, tobaccooil and nicotine in the shank,

said means including a cup liner for the shank at the inner end of the shank, said cup liner being open at its stem-facing end and having a longitudinal channel for smoke along its top and out of communication with the interior of the cup all along the length of the latter, the bowl having a smoke passage connecting withv said of the cup,.and the stem having a smoke passage extending from the outer end of'the stem to and through said reduced portion of the stem, said passage through the stem terminating in the shank above the bottom of the cupliner but below said channel, said reduced portion of the stem being tapered toward the pipe bowl, a gate pivotally'mounted in the cup liner and, swingable to close the upper portion only of the open end of the cup liner, said gate being a flat plate the axis of pivoting of which is in its own plane and substantially perpendicular of the axis of said cup liner.

KONRAD SCHU'IZ.

channel near its end adjacent to the closed end 

